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dolgachio merged 7 commits intojavascript-tutorial:masterfromSamGreenberg:greedy-and-lazy-quantifiersAug 22, 2023
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759176b
Methods of RegExp and String
SamGreenberga536fb4
Greedy and lazy quantifiers
SamGreenbergb8c9a35
Merge branch 'master' into greedy-and-lazy-quantifiers
SamGreenberg3ecf4d0
Merge branch 'master' into greedy-and-lazy-quantifiers
dolgachio60c0824
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6 changes: 3 additions & 3 deletions9-regular-expressions/10-regexp-greedy-and-lazy/1-lazy-greedy/solution.md
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Результат: `match:123 4`. | ||
Для початку, лінивий `pattern:\d+?`намагається взяти мінімальну можливу кількість цифр, але він має дійти до пробілу, тож обирається `match:123`. | ||
Далі, другий`\d+?`обере лише одну цифру, бо цього достатньо. |
4 changes: 2 additions & 2 deletions9-regular-expressions/10-regexp-greedy-and-lazy/1-lazy-greedy/task.md
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#Збіг для /d+? d+?/ | ||
Який результат ми отримаємо? | ||
```js | ||
alert( "123 456".match(/\d+? \d+?/g) ); // ? | ||
10 changes: 5 additions & 5 deletions9-regular-expressions/10-regexp-greedy-and-lazy/3-find-html-comments/solution.md
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Нам потрібно знайти початок коментарю`match:<!--`,та його зміст до самого кінця `match:-->`. | ||
Прийнятним є варіант`pattern:<!--.*?-->` --лінивий квантифікатор зупиняє крапку (будь-який символ, за винятком символу нового рядку) прямо перед`match:-->`.Нам також треба додати прапорець`pattern:s`, аби крапка включала символи нового рядку. | ||
Інакше коментарі на кілька рядків не знаходитимуться: | ||
```js run | ||
let regexp = /<!--.*?-->/gs; | ||
let str = `... <!--Мій --коментар | ||
test --> .. <!----> .. | ||
`; | ||
alert( str.match(regexp) ); // '<!--Мій --коментар \n test -->', '<!---->' | ||
``` |
10 changes: 5 additions & 5 deletions9-regular-expressions/10-regexp-greedy-and-lazy/3-find-html-comments/task.md
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#Знайти HTMLкоментарі | ||
Знайти всі HTMLкоментарі в тексті: | ||
```js | ||
let regexp = /ваш регулярний вираз/g; | ||
let str = `... <!--Мій --коментар | ||
test --> .. <!----> .. | ||
`; | ||
alert( str.match(regexp) ); // '<!--Мій --коментар \n test -->', '<!---->' | ||
``` |
2 changes: 1 addition & 1 deletion...-expressions/10-regexp-greedy-and-lazy/4-find-html-tags-greedy-lazy/solution.md
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Відповідь: `pattern:<[^<>]+>`. | ||
```js run | ||
let regexp = /<[^<>]+>/g; | ||
10 changes: 5 additions & 5 deletions...ular-expressions/10-regexp-greedy-and-lazy/4-find-html-tags-greedy-lazy/task.md
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#Знайти HTMLтеги | ||
Створити регулярний вираз для пошуку всіх (відкриваючих та закриваючих) HTMLтегів з їх атрибутами. | ||
Приклад використання: | ||
```js run | ||
let regexp = /ваш регулярний вираз/g; | ||
let str = '<> <a href="/"> <input type="radio" checked> <b>'; | ||
alert( str.match(regexp) ); // '<a href="/">', '<input type="radio" checked>', '<b>' | ||
``` | ||
Тут ми припускаємо, що атрибути тегу не містять`<`та `>` (внутрішні лапки) для спрощення задачі. |
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